fill color between two curve

i have several line and i want two fill color between them but i couldnt fill properly this what i want

(all of them)

prf=3500;
NumberOfAmbigiousArea=30;
m=(1:NumberOfAmbigiousArea);
rx = zeros(1,2*length(m));  %%%Distance of Amb Area
p=prf;         %PRF
qw=3500;
for i=1:qw
    p=p+1;
c=3e8;
tp=30e-6;      
hhhh = 6e5;  %Height of satellite
tna=2*hhhh/c;
rn = c*((m-1+p*tp+tna*p)/(2*p));
rf = c*((m-p*tp+tna*p)/(2*p));
rx(1:2:2*length(m))= rn ; 
rx(2:2:2*length(m))= rf ; 
x1(:,i) = acosd (hhhh./rx) ;     %Angle of Amb Area
end
 p=prf;

 figure;
 plot( x1 , (p:1:p+qw-1) )

Answer 1

[Matt J]

prf=3500;
NumberOfAmbigiousArea=30;
m=(1:NumberOfAmbigiousArea);
rx = zeros(1,2*length(m));  %%%Distance of Amb Area
p=prf;         %PRF
qw=3500;
for i=1:qw
    p=p+1;
c=3e8;
tp=30e-6;      
hhhh = 6e5;  %Height of satellite
tna=2*hhhh/c;
rn = c*((m-1+p*tp+tna*p)/(2*p));
rf = c*((m-p*tp+tna*p)/(2*p));
rx(1:2:2*length(m))= rn ; 
rx(2:2:2*length(m))= rf ; 
x1(:,i) = acosd (hhhh./rx) ;     %Angle of Amb Area
end
 p=prf;

 figure;
 % plot( x1 , (p:1:p+qw-1) )

 z=(p:1:p+qw-1);
 z=[z;flip(z)];
 xx=x1;
 xx(1:2:end,:)=fliplr(xx(1:2:end,:));

 xx=xx'; z=z';
for i=2:2:width(xx)-1

    xxx=xx(:,i:i+1);
    fill(xxx(:),z(:),'r'); hold on

end; hold off

[koorosh dastan]

thanks alot